Surveys
Underwater operations in progress until 30 dec by M/V sistac vida in 23-54.00S 043-08.67W
Western South Atlantic · Brazil-south Coast · HYDROLANT 3301/17
- issued
- 2017-10-16 04:10Z
- status
- cancelled 2017-12-31 00:01Z (archive)
- authority
- NAVAREA V COASTAL S 848/17 160353Z OCT 17.
- sea
- South Atlantic Ocean
- position
- -23.900, -43.145
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. BRAZIL-SOUTH COAST. DNC 01. 1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 30 DEC BY M/V SISTAC VIDA IN 23-54.00S 043-08.67W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 31 DEC 17.
This area · survey operations
546 within 180 nm since 2000 · 9 in the last 12 months · 6 in force now
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- Underwater operations 1000Z to 2000Z daily until 25 aug by vessel nomar in 24-07.27S 046-09.30W2026-08-20
- Survey operations in progress until 24 aug by M/V sea 1 dorado in area bound by 24-53.20S 042-47.12W,…2026-08-19
- Underwater operations in progress until 280259Z aug by M/V siem pilot in 24-35.02S 042-15.37W2026-08-19
- Survey operations 10 aug 26 thru 08 mar 27 by tug mce navegacao I in area bound by 22-48.38S 041-08.21W,…2026-08-09
- Underwater operations in progress until 170259Z aug in 22-22.48S 040-25.05W2026-08-06
- Underwater operations 281000Z jul to 192100Z aug by M/V umi polaris in area bound by 21-53.65S 040-49.70W,…2026-07-27
Season · when survey operations happen here
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month of issue, all years in the archive
Nearby now · within 120 nm
Worldwide now
84 survey operations in force · see all
Surveys
Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.